Ardour 8.1 - How to drag first tempo marker?

Evaluating 8.1…
How do I drag the first tempo marker? I have been doing this routinely (ardour 6.6) simply by dragging the first tempo marker but this is not working on 8.1 (attaching screenshot of what I mean)


You cannot move the first tempo (or meter) marker (since 7.0)

If you want 1|1|0 to be located later on the timeline, right click on the BBT ruler and add a new BBT marker.

Thanks Paul for the lightning fast reply!

Yes, it makes much more sense now!

Apologies for not having checked the README files as this is probably described somewhere, but there are so many changes since 6.0 that I am truly overwhelmed. Keep up the amazing work!